The Turbonetics T3 To T4B/E Hybrid Turbochargers offers the low inertia and fast boost response of the lightweight T3 turbine wheel combined with the high-airflow characteristics of the T4 compressor family. Most T3/T4 Hybrid Turbochargers are available with the patented Ceramic Ball-Bearing option. The Ceramic Ball Bearing T3/T4 Hybrid series offers the fastest spool-up. Coupled with extreme durability, the Ceramic Ball Bearing concept provides the best performance available.